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Colorado Avalanche Information Center records · winters 1950–51 to 2024–25

Avalanche deaths in the United States

Since the winter of 1950–51, avalanches have killed 1,255 people in the United States. Deaths rose from about 4 a winter in the 1950s to 29 a winter in the 2000s as more people skied, climbed and rode snowmobiles into the backcountry. The last ten winters averaged 24. Colorado has lost 328, more than any other state.

People killed
1,255in 75 winters
Fatal avalanches
1,016each killed at least one person
Killed per winter
16.7average over 75 winters
Deadliest avalanche
11 killedMt Rainier, Washington · Jun 21, 1981
Winters

Deaths each winter

Drag across the bars to pick a run of winters, or tap one winter. Bars sit at the year a winter ends.

Where they died

Click a state to zoom in and filter. Hover or tap a dot for the details of that avalanche.

People killed in each state
Fatal avalanche with a known location

What they were doing

Month of the year

A winter runs from October to September.

State

Every fatal avalanche

DatePlaceActivityKilledMap and report